How to exclude specific subdomains server_name in nginx configuration

Question

I\'m using wildcard in server_name. I want to redirect all subdomains of example.com (configured as *.example.com) to foo.com except <

Answer 1

The '*' wildcard character gets ignored by nginx:

nginx: [warn] conflicting server name "*.example.com" on 0.0.0.0.:80, ignored